feat: add config file

resources/application.properties

@@ -0,0 +1,4 @@
+app.datasource.url=jdbc:postgresql://localhost:5434/charm_repository
+app.datasource.username=postgres
+app.datasource.password=123456
+app.datasource.driver=org.postgresql.Driver

src/ru/charm/back/dao/ProfileDao.java

@@ -8,6 +8,7 @@ import ru.charm.back.model.Gender;
 import ru.charm.back.model.Profile;
 import ru.charm.back.model.Role;
 import ru.charm.back.model.Status;
+import ru.charm.back.utils.ConfigFile;
 
 import java.sql.*;
 import java.sql.Date;
@@ -18,14 +19,15 @@ import java.util.*;
 public class ProfileDao {
 
     private static final ProfileDao INSTANCE = new ProfileDao();
-    public static final String URL = "jdbc:postgresql://localhost:5434/charm_repository";
-    public static final String USER = "postgres";
-    public static final String PASSWORD = "123456";
+    public static final String URL = ConfigFile.get("app.datasource.url");
+    public static final String USER = ConfigFile.get("app.datasource.username");
+    public static final String PASSWORD = ConfigFile.get("app.datasource.password");
+    public static final String DRIVER = ConfigFile.get("app.datasource.driver");
 
 
     @SneakyThrows
     public static ProfileDao getInstance() {
-        Class.forName("org.postgresql.Driver");
+        Class.forName(DRIVER);
         return INSTANCE;
     }
 

src/ru/charm/back/utils/ConfigFile.java

@@ -0,0 +1,29 @@
+package ru.charm.back.utils;
+
+import lombok.experimental.UtilityClass;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+@UtilityClass
+public class ConfigFile {
+    private static final Properties CONFIG = new Properties();
+    
+    static {
+        loadConfig();
+    }
+
+    public static String get(String key) {
+        return CONFIG.getProperty(key); 
+    }
+
+
+    private static void loadConfig() {
+        try (InputStream resourceAsStream = ConfigFile.class.getClassLoader().getResourceAsStream("application.properties")) {
+            CONFIG.load(resourceAsStream);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}